A panic button developed by Backslash is aimed at reducing police brutality. It comes in response to a tactic known as bottlenecking when police divert protesters using blockades to one specific area where brutality can be carried out.

Backslash's panic button can be worn as a bracelet and when pressed will alert anyone else wearing a similar bracelet within 15 blocks that they are entering an unsafe area.

Scientists from Tokyo's National Institute of Informatics developed a prototype privacy visor with built in near-infrared LEDs, which are invisible to the human eye, but creates noise for cameras as it obscures the wearer's face without affecting the person themselves.